Home / 123,136.20-184,704.30-70,502.40

Finding the Fourth Proportional to 123,136.20, 184,704.30 and 70,502.40

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Solution

The fourth proportional to 123,136.20, 184,704.30 and 70,502.40 is: 105,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,136.20 : 184,704.30 = 70,502.40 : x
  2. Step 2: Convert to fraction form
    123,136.20/184,704.30 = 70,502.40/x
  3. Step 3: Cross multiply
    123,136.20x = 184,704.30 × 70,502.40
  4. Step 4: Simplify right side
    123,136.20x = 13,022,096,440.32
  5. Step 5: Solve for x
    x = 13,022,096,440.32/123,136.20
  6. Step 6: Final answer
    x = 105,753.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.